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详细介绍
BURKERT通用调节器204639具有紧凑型的结构方式，非常适合同样采用紧凑型设计的调节系统。这种调节器经测试可兼容与所有 Bürkert 比例阀和传感器，在使用标准信号（4-20 mA、0-10 V 或 PWM 输出信号）的前提下，可以与各种非 Bürkert 调节阀相组合。这种具有 PI 特性的过程调节阀，配备了大量的附加功能。通过 3 个模拟输入端，可以将工艺实际值作为标准信号 (4-20mA / 0-10V)、电阻信号 (PT100) 或频率信号读入。通过电流或电压标准信号或者键盘，可以规定工艺额定值。特别适合温度调节任务，可以设计其下方安装有流量调节装置的级联式结构。通过控制比例阀和过程阀，可以在流体技术领域中完成各种各样的调节任务，也可将其应用于液态的或气态的介质。
BURKERT通用调节器204639特点：
持续式、两点式、三点式及 On/Off 调节
比例调节
传感器输入端（4-20 mA，0-10 V，频率，Pt100）
比例阀、过程阀和电动阀的控制装置
预先定义所有的 Bürkert 比例阀和流量传感器
BURKERT通用调节器204639技术参数：
Power supply | 24 V DC ±10%, filtered and regulated | |
Power consumption | approx. 2 W (without valve - without sensor input) | |
Input |
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Setpoint |
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Standard 4-20 mA | Sourcing mode | |
| Max. input impedance: 70 W | |
| Resolution: 5.5 mA | |
Standard 0-10 V | Max. input impedance: 11.5 kW | |
| Resolution: 2.5 mV | |
Sensors |
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Standard 4-20 mA | Sourcing mode | |
| Max. input impedance: 70 W | |
| Resolution: 5.5 mA | |
Standard 0-10 V | Max. input impedance: 11.5 kW | |
| Resolution: 2.5 mV | |
Frequency |
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Input 1 | External sensor | |
| min. 0.25 Hz / max. 1 kHz | |
| input impedance: >1 kW | |
| Signal type: Sinus, square, triangle pulse (> 3000 mVpp, | |
| max. 30 Vpp) | |
Input 2 | Internal Hall sensor | |
| min. 0.25 Hz / max. 1 kHz | |
| (only with Bürkert Type S030 flow fitting) | |
Pt100 (2 wires) | Measuring range: 0°C...200°C | |
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| Measuring current: 1 mA | |
| Measuring error: <0.5°C | |
Sensor power supply | 24 V DC, max. 1 A | |
Binary input | Input impedance: 10 kW | |
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| Operating threshold: 3 V-30 V | |
| Max. frequency: 1 kHz | |
Outputs |
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Continuous signal | Standard signal 4-20 mA | |
| max. loop resistance: 680 W | |
| accuracy: 0.5% | |
| Standard signal 0-10 V | |
| max. current: 20 mA | |
| accuracy: 0.5% | |
Discontinuous signal | 2 transistor outputs for PWM*) or PTM*) signal | |
| Control frequency 1.2 kHz-20 Hz | |
| resolution max.: 16 Bit (depend from frequency) | |
| max. current load: 1.5 A | |
| switching voltage: 24 V DC | |
Binary output | Transistor output (PNP) (configurable) | |
| max. current load: 1.5 A | |
| switching voltage: 24 V DC | |
Total load of all outputs | max. 1.5 A | |
Controller modes | PI-Control, 2 point and 3 point, cascaded | |
| Up to 2 Binary out with windows and hysteresis mode | |
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